A lancelet is a filter feeder with no brain, eyes, or heart. A sea squirt is an example of a lancelet.
Branchiostoma lanceolatum, also known as the European lancelet, is an example of a lancelet. These marine animals belong to the phylum Chordata and closely resemble the common ancestors of vertebrates. They are typically found in sandy coastal areas where they burrow in the sediment.
Yes. Lancelets are fish and all fish are ectothermic.
chordates
Chordates such as the sea squirts and lancelets do not have a backbone that is why they are called vertebrate chordates.
yes
By contracting muscles in their body.
Acoelomate
No, lancelets do not have a backbone. They are small, fish-like marine invertebrates that belong to the subphylum Cephalochordata and possess a notochord instead of a true backbone.
Yes, lancelets are deuterostomes. Deuterostomes are a group of animals characterized by their embryonic development, in which the blastopore becomes the anus. Lancelets belong to the phylum Chordata along with vertebrates, and they exhibit deuterostome development.
They're filter feeders
bony jaws
Tunicates and lancelets are two subphyla of animals that are classified as Chordata. This means that they have dorsal nerve cords as well as notochords.